Subject: Re: 4.5 litre engine problems and upgrades
I don't think any boost to cooling of that block with those liners would have prevented this problem. Coolant temp sat at a steady 70 degrees C so under the running conditions I described the heat wasn't getting away from the cylinders and into to coolant efficiently. I've spoken to another couple of owners who have had similar problems.
My car weighs about 2,000kg, possibly a bit more.
Best wishes,
David